They stepped in.

They stepped in.

RENE MACURA/THE ASSOCIATED PRESS

Dorsey High School students Juan Carlos Ortega (right) and Cristina Mojarro (center) talk about their science experiment which was onboard the space shuttle Columbia, during a news conference, Sunday, Feb. 2, 2003, in Los Angeles. The students and their instructional advisor Joe Oliver (left) were the back-up team for a group of students from China and their experiment. When the Chinese students encountered visa and scheduling problems and could not bring their experiment on silkworm larvae to the shuttle's launch in Florida, the Los Angeles students stepped in to help.

Dorsey High School students Juan Carlos Ortega (right) and Cristina Mojarro (center) talk about their science experiment which was onboard the space shuttle Columbia, during a news conference, Sunday, Feb. 2, 2003, in Los Angeles. The students and their instructional advisor Joe Oliver (left) were the back-up team for a group of students from China and their experiment. When the Chinese students encountered visa and scheduling problems and could not bring their experiment on silkworm larvae to the shuttle's launch in Florida, the Los Angeles students stepped in to help. (RENE MACURA/THE ASSOCIATED PRESS)

Dorsey High School students Juan Carlos Ortega (right) and Cristina Mojarro (center) talk about their science experiment which was onboard the space shuttle Columbia, during a news conference, Sunday, Feb. 2, 2003, in Los Angeles. The students and their instructional advisor Joe Oliver (left) were the back-up team for a group of students from China and their experiment. When the Chinese students encountered visa and scheduling problems and could not bring their experiment on silkworm larvae to the shuttle's launch in Florida, the Los Angeles students stepped in to help.